Java Utililty Methods File to String

Convert the content of the given file to string.

BufferedReader reader = null;
try {
    reader = new BufferedReader(new InputStreamReader(new FileInputStream(new File(filename))));
    StringBuffer sb = new StringBuffer();
    char[] buffer = new char[1024];
    int k = 0;
    while ((k = reader.read(buffer)) != -1) {
        sb.append(buffer, 0, k);
...

String ret = null;
try {
    InputStream in = new FileInputStream(fileName);
    ret = streamToString(in);
    in.close();
} catch (FileNotFoundException e) {
    e.printStackTrace();
} catch (IOException e) {
...

StringBuffer result = new StringBuffer();
BufferedReader in = new BufferedReader(new FileReader(fileName));
char[] buffer = new char[1000];
int readedChars = 0;
try {
    while ((readedChars = in.read(buffer)) > 0) {
        result.append(buffer, 0, readedChars);
} finally {
    in.close();
return result.toString();

BufferedReader in = new BufferedReader(new FileReader(filename));
StringBuffer sb = new StringBuffer();
String str = null;
while ((str = in.readLine()) != null) {
    sb.append(str);
    sb.append('\n');
in.close();
...

File file = new File(fileName);
return fileToString(file);

if (fileName != null) {
    byte[] utf8Bytes;
    String sFile = new String();
    try {
        FileInputStream fis = new FileInputStream(fileName);
        int noOfBytes = fis.available();
        if (noOfBytes > 0) {
            utf8Bytes = new byte[noOfBytes];
...

StringBuffer sb = new StringBuffer();
BufferedReader in = new BufferedReader(new FileReader(fileName));
String line;
boolean timestampActive = false;
boolean adapterNameActive = false;
while ((line = in.readLine()) != null) {
    line = line.trim();
    if (line.length() > 0) {
...

File f = new File(filePath);
BufferedReader br = new BufferedReader(new FileReader(f));
try {
    StringBuilder sb = new StringBuilder();
    String line = br.readLine();
    while (line != null) {
        sb.append(line);
        sb.append("\n");
...

InputStreamReader reader = null;
StringWriter writer = new StringWriter();
try {
    if (encoding == null || "".equals(encoding)) {
        reader = new InputStreamReader(new FileInputStream(new File(filePath)), encoding);
    } else {
        reader = new InputStreamReader(new FileInputStream(new File(filePath)));
    char[] buffer = new char[1024];
    int n = 0;
    while (-1 != (n = reader.read(buffer))) {
        writer.write(buffer, 0, n);
} catch (Exception e) {
    e.printStackTrace();
    return null;
} finally {
    if (reader != null) {
        try {
            reader.close();
        } catch (Exception e2) {
            e2.printStackTrace();
if (writer != null) {
    return writer.toString();
} else {
    return null;

InputStream input;
InputStreamReader reader;
BufferedReader buffer;
String texto = "", linha;
try {
    input = new FileInputStream(nomeArquivo);
    reader = new InputStreamReader(input);
    buffer = new BufferedReader(reader);
...